1. After the _______ (灾难) there were many people who wanted food and shelter.
2. The losses from the _______ (洪水)add up to ten million dollars.
3. Police are investigating the _______ (原因)of the explosion.
4. The house was _______ (埋葬)under ten feet of snow.
5. It _______ (想到)to me that we should go there more often.